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PM&R > Upper Extremity Muscle Innervations > Flashcards

Upper Extremity Muscle Innervations Flashcards

1
Q

Trapezius

A

Spinal Accessory

C3/4

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2
Q

SCM

A

Spinal accessory

C3/4

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3
Q

Rhomboids

A

Dorsal scapula

C4/5

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4
Q

Supraspinatus

A

Suprascapular
Upper trunk
C5/6

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5
Q

Infraspinatus

A

Suprascapular (after traveling thru spinoglenoid notch)
Upper trunk
C5/6

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6
Q

Biceps brachii

A

Musculocutaneous
Lateral cord
Upper trunk
C5/6

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7
Q

Brachialis

A

Musculocutaneous
Lateral cord
Upper trunk
C5/6

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8
Q

Deltoid

A

Axillary
Posterior cord
Upper trunk
C5/6

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9
Q

Teres minor

A

Axillary
Posterior cord
Upper trunk
C5/6

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10
Q

Brachioradialis

A

Radial n
Posterior cord
Upper trunk
C5/6

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11
Q

Serratus anterior

A

Long thoracic n

C5, 6, 7

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12
Q

Pectoralis major

A

Medial and lateral pectoral n
Medial and lateral cords
Upper, middle, and lower trunks
C5-T1

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13
Q

Pronator teres

A

Median n
Lateral cord
Upper and middle trunk
C6/7

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14
Q

Flexor carpi radialis

A

Median n
Lateral cord
Upper and middle trunk
C6/7

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15
Q

Extensor carpi radialis longus

A

Radial n
Posterior cord
Upper and middle trunks
C6/7

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16
Q

Triceps

A

Radial n
Posterior cord
Upper, middle, and lower trunks
C6, 7, 8

17
Q

Anconeus

A

Radial n
Posterior cord
Upper, middle and lateral trunks
C6, 7, 8

18
Q

Latissimus dorsi

A

Thoracodorsal n
Posterior cord
Upper, middle, and lower trunks
C6, 7, 8

19
Q

Extensor carpi ulnaris

A 
Posterior Interosseous Nerve branch
Radial n
Posterior cord
Middle and lower trunks
C7/8
20
Q

Extensor indicis proprius

A 
PIN
Radial n
Posterior cord
Middle and lower trunks
C7/8
21
Q

Extensor digitorum

A 
PIN
Radial n
Posterior cord
Middle and lower trunks
C7/8
22
Q

Flexor digitorum superficialis

A

Median n
Medial and lateral cords
Middle and lower trunks
C7/8

23
Q

Pronator quadratus

A 
Anterior interosseous n
Median n
Medial and lateral cords
Middle and lower trunks
C7/8 and T1
24
Q

Flexor pollicus longus

A 
AIN
Median 
Medial and lateral cords
Middle and lower trunks
C7/8 and T1
25
Q

FDP 2,3

A 
AIN
Median n
Medial cord
Middle and lower trunks
C7/8 and T1
26
Q

FDP 4,5

A

Ulnar n
Medial cord
Middle and lower trunk
C7/8 and T1

27
Q

Abductor pollicus brevis

A

Median n
Medial cord
Lower trunk
C8/T1

28
Q

Flexor pollicus brevis

A

Median and ulnar n
Medial cord
Lower trunk
C8/T1

29
Q

Lumbricals 1,2

A

Median n
Medial cord
Lower trunk
C8/T1

30
Q

Opponens pollicus

A

Median n
Medial cord
Lower trunk
C8/T1

31
Q

Flexor carpi ulnaris

A

Ulnar n
Medial cord
Lower trunk
C8/T1

32
Q

Abductor digiti minimi

A

Ulnar
Medial cord
Lower trunk
C8/T1

33
Q

First dorsal interossei

A

Ulnar n
Medial cord
Lower trunk
C8/T1

34
Q

Lumbricals 3, 4

A

Ulnar
Medial cord
Lower trunk
C8/T1

35
Q

Interossei (3 PADs, 4 DABs)

A

Ulnar
Medial cord
Lower trunk
C8/T1

36
Q

Sensory innervation for lateral forearm

A 
Lateral antebrachial cutaneous (LAC)
Musculocutaneous
Lateral cord
Upper trunk
C5/6
37
Q

Sensory innervation of medial forearm

A 
Medial antebrachial cutaneous (MAC)
Ulnar 
Medial cord
Lower trunk
C8/T1

PM&R (2 decks)

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